Stepped Taxes
Warning: 
This is a difficult example. You should take the time to understand it even if you don't have stepped taxes because it illustrates the power of the various rate algorithms.
The following table illustrates the rate components necessary to levy a simple rate that contains the following charges:
• $0.10 per kWh.
• Service charge of $6.00
• Taxes are stepped:
• 6.383% for the anything up to $10
• 9.89% for everything above $10
Note that the dollar amount should be prorated if the bill is prorated.
Seq #
Description
RC Type
Value Type
Value
UOM/TOU/SQI
Cross Reference
Calc Only
Result Type
10
Energy Charge
Service Quantity
Unit Rate
0.10
KWH
N
20
Customer Charge
Flat
Charge
6.00
N
30
Total Taxable Revenue
Summary
10, 20
Y
Charge
40
Taxable Rev for 1st tax tier
Maximum
Charge
10.00
30
Y
Charge
50
Taxable Rev for 1st tax tier
Summary
30, 40
Y
Charge
60
Taxable Rev for 2nd tax tier
Apply To
Percent
-100.00
50
Y
Charge
70
Taxable Rev for 2nd tax tier
Summary
30, 60
Y
Charge
80
Tax for 1st tier
Apply to
Percent
6.383
50
N
90
Tax for 2nd tier
Apply to
Percent
9.89
70
N
Notice that sequences 30, 40, 50, and 60 are calculation-only rate components that are used to calculate the amount of revenue applicable for each tax rate. We'll let you work the math.